напряжение тех лет сказалось на его

напряжение тех лет сказалось на его здоровье и привело к болезни сердца что стало причиной его преждевременной смерти.

Результаты (английский) 1:

the tension of those years affected his health and led to heart disease that led to his premature death.

Результаты (английский) 2:

stress of those years affected his health and lead to heart disease that led to his premature death.

Результаты (английский) 3:

the tension of the years affected his health and led to a heart disease that caused his premature death.